Shoe upper



FIG. 1 is a side view of a shoe upper showing my new design;

FIG. 2 is the opposite side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

The broken line showing the sole of the shoe upper in FIGS. 1-5 is environmental only and forms no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 